Commit 7d2b23fd authored by Peng Fan's avatar Peng Fan Committed by Sudeep Holla
Browse files

dt-bindings: firmware: Add i.MX95 SCMI Extension protocol 



Add i.MX SCMI Extension protocols bindings for:
- Battery Backed Module(BBM) Protocol
  This contains persistent storage (GPR), an RTC, and the ON/OFF button.
  The protocol can also provide access to similar functions implemented via
  external board components.
- MISC Protocol.
  This includes controls that are misc settings/actions that must be
  exposed from the SM to agents. They are device specific and are usually
  define to access bit fields in various mix block control modules,
  IOMUX_GPR, and other GPR/CSR owned by the SM.

Reviewed-by: default avatarRob Herring (Arm) <robh@kernel.org>
Reviewed-by: default avatarCristian Marussi <cristian.marussi@arm.com>
Signed-off-by: default avatarPeng Fan <peng.fan@nxp.com>
Message-Id: <20240823-imx95-bbm-misc-v2-v8-1-e600ed9e9271@nxp.com>
Signed-off-by: default avatarSudeep Holla <sudeep.holla@arm.com>
parent c4b908a2

Documentation/devicetree/bindings/firmware/arm,scmi.yaml

+4 −1
Original line number Diff line number Diff line
@@ -22,6 +22,9 @@ description: | 


  [0] https://developer.arm.com/documentation/den0056/latest



anyOf:

  - $ref: /schemas/firmware/nxp,imx95-scmi.yaml



properties:

  $nodename:

    const: scmi
@@ -299,7 +302,7 @@ properties: 
    required:

      - reg



additionalProperties: false

unevaluatedProperties: false



$defs:

  protocol-node:

Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml

0 → 100644
+43 −0
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

# Copyright 2024 NXP

%YAML 1.2

---

$id: http://devicetree.org/schemas/firmware/nxp,imx95-scmi.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: i.MX95 System Control and Management Interface(SCMI) Vendor Protocols Extension



maintainers:

  - Peng Fan <peng.fan@nxp.com>



properties:

  protocol@81:

    $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'

    unevaluatedProperties: false



    properties:

      reg:

        const: 0x81



  protocol@84:

    $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'

    unevaluatedProperties: false



    properties:

      reg:

        const: 0x84



      nxp,ctrl-ids:

        description:

          Each entry consists of 2 integers, represents the ctrl id and the value

        items:

          items:

            - description: the ctrl id index

              enum: [0, 1, 2, 3, 4, 5, 6, 7, 0x8000, 0x8001, 0x8002, 0x8003,

                     0x8004, 0x8005, 0x8006, 0x8007]

            - description: the value assigned to the ctrl id

        minItems: 1

        maxItems: 16

        $ref: /schemas/types.yaml#/definitions/uint32-matrix



additionalProperties: true